|Episode number|Original airdate|Title|Disc|Description|
|---|---|---|---|---|
|48|30 January 1983|"The Frozen Turkey Man"|1|For a joke, Compo and Clegg convince a barmaid that Foggy is a multi-millionaire.|
|49|6 February 1983|"The White Man's Grave"|1|The trio have Clegg stand in for Wally in an attempt to give Wally a few hours' freedom.|
|50|13 February 1983|"The Waist Land"|1|Foggy attempts to earn some ready cash by smuggling junk food to some health farm inmates.|
|51|20 February 1983|"Cheering Up Ludovic"|1|Clegg is roped in to drive a van when an old friend is too drunk to use it.|
|52|27 February 1983|"The Three Astaires"|1|The trio help out at a church concert, but Compo is more interested in a suit of armour.|
|53|6 March 1983|"The Arts of Concealment"|1|Foggy lands himself in trouble with a group of local cyclists when he demonstrates his supposed skill at camouflage.|

Question: how many episodes had their original airdate in february?
Answer: 4